Story time.
Did a 3.4L swap on my 99 with 996 DME. Got everything worked out except for a P1539 (Camshaft Adjustment, Bank 2 Actuator triggered, no active position). Opened my DME and found a burnt transistor as described here:
Help with 986 ECU Repair - Rennlist Discussion Forums
I replaced the transistor and P1539 went away however I immediately got a Cam shaft deviation too great bank 2 code (can't remember which code that is). And the engine is idle searching. So after seeing some chain guide material in the oil filter we take both cam covers off and replace the chain guides.
After reassembling the engine and timing everything we still get idle searching and now a P1324 (Timing Chain out of Position, Bank 2) and the P1539 comes back. Remove 4-6 cam cover again and double check the cam chain timing. Everything looks good. I also put in a spare variocam unit to make sure the P1539 isn't caused by a bad one.
With everything back together again now. We still get rough/searching idle. And p1539 and P1324. This is with everything literally triple checked. My next step is to visit my indy with a PST-2 and see if he can gain any clues from it. Could also be a damaged DME given the burnt transistor.
Any advice from you guys on what to troubleshoot next? Any help is much appreciated. We are running out of ideas.